Section 2 Approval and survey requirements
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules for the Manufacture, Testing and Certification of Materials, July 2022 - Chapter 1 General Requirements - Section 2 Approval and survey requirements

Section 2 Approval and survey requirements

2.1 Approval and survey requirements – General

2.1.1 Marine materials manufactured in accordance with Ch 3 Rolled Steel Plates, Strip, Sections and Bars to Ch 10 Equipment for Mooring and Anchoring of these Rules are to be made at works which have been approved by LR for the type and grade of product being supplied.

2.1.2 Materials manufactured in accordance with Ch 3 Rolled Steel Plates, Strip, Sections and Bars to Ch 10 Equipment for Mooring and Anchoring of these Rules are to be manufactured, tested and inspected under Survey according to the requirements of one of the following two schemes:

  1. The Materials Survey Scheme, see Ch 1, 2.3 Materials Survey Scheme.

  2. The Materials Quality Scheme, see Ch 1, 2.4 Materials Quality Scheme.

2.1.3 For the purposes of survey, LR Surveyors are to be allowed access to all relevant parts of the works, and are to be provided with the necessary facilities and information to enable them to verify that the manufacture is being carried out in accordance with the approved procedures. Facilities are also to be provided for the selection of test material, the witnessing of mechanical tests and the examination of materials, as required by these Rules.

2.1.4 Where a production process, testing or examination of materials is sub-contracted, this must be with the approval of LR. Surveyors are to be allowed access to the sub-contractor's premises in order to conduct Surveys according to the requirements of these Rules.

2.1.5 Products manufactured in accordance with Ch 11 Approval of Welding Consumables, Ch 14 Plastics Materials and other Non-Metallic Materials and Ch 15, 2 Coatings and Ch 15, 3 Corrosion Resistant Steels of Ch 15 Corrosion Prevention are to be approved in accordance with the requirements therein. For these materials, approval is given for a specific product on a type approval basis, rather than the approved manufacturer/survey arrangements applied to materials covered by Ch 3 Rolled Steel Plates, Strip, Sections and Bars to Ch 10 Equipment for Mooring and Anchoring.

2.2 LR Approval – General

2.2.1 Unless specifically stated in other Chapters of these Rules, all LR approvals apply to materials used in applications intended for marine service, as described in Ch 1, 1.1 General.

2.2.2 The procedures for application for approval of manufacturers and products, the details of the information to be supplied by the manufacturer, and the test programme to be conducted on the products are given in the appropriate book of LR's Materials and Qualification Procedures for Ships (MQPS). This is published in the Class Direct section of LR's web site at http://www.lr.org.

2.2.3 LR publishes lists of approved manufacturers and approved products. The lists are published in the Class Direct section of LR's website, http://www.lr.org. The lists are as follows:

  • List of Approved Manufacturers of Materials.
  • Approved Welding Consumables for Use in Ship Construction.
  • Lists of Paints, Resins, Reinforcements and Associated Materials.
  • Lists of Approved Anchors.

2.2.4 For initial LR approval as an Approved Manufacturer for a particular material, the manufacturer is required to demonstrate to the satisfaction of LR that the necessary manufacturing and testing facilities are available, and are supervised by suitably qualified personnel. A specified programme of tests is to be carried out under the supervision of LR Surveyors, and the results are to be to the satisfaction of LR.

2.2.5 If the results of the initial assessment of the manufacturer, and the test programme are considered satisfactory, the manufacturer will be added to the list of approved manufacturers of materials, and a certificate of approval will be issued to the manufacturer by LR, showing the scope of materials and grades covered by the approval. Initial approval will generally be under the Materials Survey Scheme, see Ch 1, 2.3 Materials Survey Scheme.

2.2.6 Approved manufacturers who meet the entry requirements may apply for approval under the Materials Quality Scheme, see Ch 1, 2.4 Materials Quality Scheme.

2.2.7 When a manufacturer has more than one works, the manufacturer's approval shall only be valid for the works where the test programme was conducted.

2.2.8 It is the manufacturer's responsibility to advise LR of all changes to the manufacturing process parameters that may affect the application of the material, prior to the adoption of the changes in production. Additional approval tests may be required to maintain the approval.

2.2.9 Maintenance of approval is dependent on the manufacturer continuing to meet the requirements of the applicable sections of these Rules.

2.2.10 Where it is considered that an approved manufacturer is not maintaining its responsibilities to comply with these Rules, the approval may be suspended by LR until such time that agreed corrective and preventive actions are considered to have been satisfactorily carried out. If considered necessary, LR may require that the normal level of testing and inspection is increased.

2.2.11 In all instances, LR will reduce the scope of, or withdraw approval from, a manufacturer where it becomes apparent that the manufacturer is unable to maintain compliance with these Rules or the scope of approval.

2.2.12 Where a manufacturer disagrees with any decisions made with regard to LR approval, they may appeal in writing to LR.

2.2.13 Any documents, data or other information received as part of the approval process will be treated as strictly confidential, and will not be disclosed to any third party, without the manufacturer's prior written consent.

2.2.14 The approved works will be subject to a periodic inspection of all relevant parts of the works, at intervals not exceeding three years. The procedure for this periodic inspection is given in Book B of LR’s Materials and Qualification Procedures for Ships (MQPS). This periodic inspection is in addition to the regular visits made according to Ch 1, 2.3 Materials Survey Scheme 2.3.7.

2.3 Materials Survey Scheme

2.3.1 Materials according to Ch 3 Rolled Steel Plates, Strip, Sections and Bars to Ch 10 Equipment for Mooring and Anchoring of these Rules and produced under the Materials Survey Scheme will be subject to Direct Survey by an LR Surveyor. The scheme requires the Surveyor to survey and certify all materials according to the requirements of these Rules.

2.3.2 Approved manufacturers are to request a survey of the material by an LR Surveyor, when required. Manufacturers must provide the Surveyor with details of the order, specification and any special conditions additional to the requirements of these Rules.

2.3.3 All mechanical tests required by these Rules are to be witnessed. The Surveyor may allow part of this task to be carried out by a member of the works staff by prior written agreement.

2.3.4 Before final acceptance, all materials are to be submitted to the specified tests and examinations under conditions acceptable to the Surveyor. The results are to comply with the Rules, and all materials are to be to the satisfaction of the Surveyor.

2.3.5 The specified tests and examinations are to be carried out prior to the despatch of finished materials from the manufacturer's works. Where materials are supplied in the rough or unfinished condition, as many as possible of the specified tests are to be carried out by the manufacturer, and any tests or examinations that are not completed are to be carried out under survey at a subsequent stage of manufacture.

2.3.6 In the event of any material proving unsatisfactory during subsequent working, machining or fabrication, such material is to be rejected, notwithstanding any previous certification.

2.3.7 In addition to witnessing test results, the Surveyor is responsible for ensuring that the manufacturing process, inspection, testing, identification and certification are properly conducted. As part of the Materials Survey Scheme, regular visits will be made to all relevant parts of the works, including the subcontractors who are conducting any process which will affect the properties of the final products, to check for compliance against the requirements of these Rules, and to ensure that the manufacturer is maintaining the capability to consistently produce approved materials.

2.3.8 The Surveyor, when satisfied that the material fully meets the requirements of these Rules, will certify the material in accordance with Ch 1, 3 Certification of materials and the appropriate Chapter of these Rules.

2.4 Materials Quality Scheme

2.4.1 The manufacturer may apply to be approved under the Materials Quality Scheme where the following requirements are met:

  1. The manufacturer has been approved by LR on the Materials Survey Scheme for a minimum of three years and continues to maintain their LR works approval according to Ch 1, 2.2 LR Approval – General 2.2.14; and

  2. The manufacturer has a quality management system, which has been certified as meeting the requirements of ISO 9001 Quality Management Systems - Requirements by a certification body recognised by LR, which is one accredited by a member of the International Accreditation Forum; and

  3. The manufacturer has a satisfactory history of quality performance in the manufacture and supply of LR approved materials.

2.4.2 Special consideration may be given to manufacturers who have not been approved under the Materials Survey Scheme, and may be considered onto the Materials Quality Scheme providing:

  1. They have a quality management system which has been certified as meeting the requirements of ISO 9001 by a certification body recognised by LR, which is one accredited by a member of the International Accreditation Forum.

  2. They can demonstrate a history of satisfactory supply of materials which LR deems to be equivalent to those for which approval under the Materials Quality Scheme is requested.

In this case, the initial assessment of the manufacturer will include the product testing regime, as required for initial approval under the Materials Survey Scheme see Ch 1, 2.2 LR Approval – General 2.2.4.

2.4.3 The Scheme is based on a Scheme Certification Schedule, made between LR and each individual manufacturer. The schedule will stipulate:

  1. The scope of approved products covered by the approval.

  2. The process route applied by the manufacturer for each approved product.

  3. The arrangements for LR scheme, audits, including scope, frequency, schedule, etc.

  4. Agreed procedures for certification of approved materials.

  5. Information to be supplied periodically to LR by the manufacturer.

  6. Procedures for the use of the scheme mark.

2.4.4 The contents of the Scheme Certification Schedule are to remain confidential between LR and the manufacturer.

2.4.5 The Materials Quality Scheme is based on a technical audit approach, and is designed to complement the quality management systems audits performed to ISO 9001. The role of the Surveyor in scheme audits is to:

  1. Verify that the quality management system is being maintained and audited to the requirements of ISO 9001.

  2. Verify that the requirements of these Rules are being implemented.

  3. Verify that the requirements of this Scheme are being implemented.

  4. Perform Scheme audits, which focus on the technical aspects of the product realisation process, particularly with regard to Rule requirements.

  5. Perform witness testing as required.

  6. Verify the data supplied to LR periodically by the manufacturer as part of the Scheme requirements.

2.4.6 The Materials Quality Scheme may be applied to any approved manufacturer who meets the eligibility requirements, and who applies to be approved under the scheme. If approved under the scheme, the manufacturer's name will appear on the List of Approved Manufacturers published by LR, with an indication that they are approved under this scheme.

2.4.7 The scheme is available to manufacturers producing approved materials according to Ch 3 Rolled Steel Plates, Strip, Sections and Bars to Ch 10 Equipment for Mooring and Anchoring of these Rules.

2.4.8 The procedures for application for approval for the Materials Quality Scheme are given in LR's ShipRight Procedure Approval of a Manufacturer according to Quality Assurance Engineering Schemes (QAES).

2.4.9 Where LR is satisfied that the manufacturer meets all of the requirements of the Scheme, and that it is appropriate for the products being manufactured, a Scheme Certification Schedule will be issued, which must be signed by an authorised representative of the manufacturer.

2.4.10 Once the Scheme Certification Schedule has been signed by both parties, LR will issue the manufacturer with a certificate of approval according to the Materials Quality Scheme.

2.4.11 Maintenance of approval will be according to the Scheme Certification Schedule agreed between LR and the manufacturer, and these Rules.

2.4.12 It is the responsibility of the attending Surveyor to perform regular Scheme audits at the manufacturer's works in accordance with the Scheme Certification Schedule, and the requirements of these Rules.

2.4.13 It is not the intention to repeat the audit according to ISO 9001 conducted by the recognised certification body. The Surveyor is, however, to be satisfied that these audits are being conducted effectively. Where appropriate, the Surveyor may conduct a partial audit to ISO 9001 to verify this.

2.4.14 Witness tests may be conducted as part of the Scheme audit. This will involve the selection of material, and the witness of sampling and testing according to the requirements of the appropriate chapter of these Rules. Such witness testing may be on LR grades, or materials which the Surveyor deems to be equivalent (for the purposes of audit testing only).

2.4.15 Once every three years, a full assessment of scheme compliance will be conducted by a Surveyor who is generally not the regular attending Surveyor. This assessment is in addition to the periodic inspection requirement made according to Ch 1, 2.2 LR Approval – General 2.2.14.

2.4.16 In the event of any change which means that the manufacturer no longer meets the requirements for the Materials Quality Scheme (for example the loss of ISO 9001 approval), the Scheme certificate of approval will be revoked. The manufacturer will revert to the Materials Survey Scheme, and will be subject to survey according to that scheme.


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